Whakaoti mō x
x\in (-\infty,-2)\cup [-1,\infty)
Graph
Tohaina
Kua tāruatia ki te papatopenga
x+1\leq 0 x+2<0
Kia ≥0 rawa te otinga, hei ≤0 a x+1 me x+2 tahi, hei ≥0 rānei rāua tahi, otiia tē taea ai hei kore te x+2. Whakaarohia te tauira ina tōraro tahi a x+1\leq 0 me x+2.
x<-2
Te otinga e whakaea i ngā koreōrite e rua ko x<-2.
x+1\geq 0 x+2>0
Whakaarohia te tauira ina tōrunga tahi a x+1\geq 0 me x+2.
x\geq -1
Te otinga e whakaea i ngā koreōrite e rua ko x\geq -1.
x<-2\text{; }x\geq -1
Ko te otinga whakamutunga ko te whakakotahi i ngā otinga kua whiwhi.
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